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arXiv · 2104.05992

Dynamic Magnetoelastic Boundary Conditions and the Pumping of Phonons

Takuma Sato·Weichao Yu·Simon Streib·Gerrit E. W. Bauer
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Abstract

We derive boundary conditions at the interfaces of magnetoelastic heterostructures under ferromagnetic resonance for arbitrary magnetization directions and interface shapes. We apply our formalism to magnet$\vert$nonmagnet bilayers and magnetic grains embedded in a nonmagnetic thin film, revealing a nontrivial magnetization angle dependence of acoustic phonon pumping.

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Takuma Sato, Weichao Yu, Simon Streib, Gerrit E. W. Bauer. 2021-04-13. Dynamic Magnetoelastic Boundary Conditions and the Pumping of Phonons. https://doi.org/10.1103/physrevb.104.014403

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